Hello,
I would like to use a rotary encoder to learn the instantaneous RPM of a shaft, and then use that information to change gears. There are only five gears.
I think I need a power supply, a rotary encoder, a micro controller and an actuator.
Could you suggest suitable parts?
Thanks in advance, Tom
Thanks Cbenson!
My turbine is very agricultural, and not like the one pictured. The shaft diameter is 10 mm and there is a good amount of space around it. The resolution does not have to be very high, it only rotates between 60 and 250 rpm.
Would any of these three be suitable encoders?
Vex Optical Shaft Encoder
Product code : RB-Inn-06
Wheel Watcher Rotation Encoder
Product code : RB-Sbo-33
Cytron Simple Rotary Encoder Kit
Product code : RB-Cyt-39
Thanks in advance, Tom
Hi WindTurbine,
Welcome to the RobotShop Forum. You have the parts correct, now you need to determine how big you need them, and in which dimensions. The microcontroller only needs to have two digital input pins to connect to a rotary encoder, and another pin to control the motor controller which connects to the actuator. In order to suggest the right parts, we would need a lot more information about the design and setup of the turbine. RobotShop offers power supplies, encoders, microcontrollers, gears and actuators.
Hope this helps,
Hi,
RB-Cyt-39 is your best bet - and you would need to custom-make a new disc to fit the shaft. To mount the disc perfectly perpendicular to the shaft, we suggest a 10mm mounting hub. If you don’t have CAD software, you can use Google Sketchup and print it 1:1 scale. You can add as many spokes as you like - the more you have the better the resolution.
Sincerely,